Alright, that test is over and I've got 2 more questions for you smarty-pantses :).
Charger did not shut off. Pos wire read 3.85 amps and neg (on the other battery, of course) reads 1.72. I unplugged it after checking amps.
Question 1: Why are are pos and negs amps different?
Question 2: I see people here talking all the time about how many amps their batteries will take at a given voltage, as a measure of soc. If my batteries are taking this many amps, does that mean they are not really fully charged? (And, if so, how did my prev set of batteries get all swollen?)